Kubei – Kubernetes Runtime Vulnerability Scanner

Kubei is a vulnerabilities scanning tool that allows users to get an accurate and immediate risk assessment of their kubernetes clusters. Kubei scans all images that are being used in a Kubernetes cluster, including images of application pods and system pods. It doesn’t scan the entire image registries and doesn’t require preliminary integration with CI/CD pipelines.

Kubei - Kubernetes Runtime Vulnerability Scanner
Kubei – Kubernetes Runtime Vulnerability Scanner

It is a configurable tool which allows users to define the scope of the scan (target namespaces), the speed, and the vulnerabilities level of interest.

It provides a graphical UI which allows the viewer to identify where and what should be replaced, in order to mitigate the discovered vulnerabilities.

The file deploy/kubei.yaml is used to deploy and configure Kubei on your cluster.

  1. Set the scan scope. Set the IGNORE_NAMESPACES env variable to ignore specific namespaces. Set TARGET_NAMESPACE to scan a specific namespace, or leave empty to scan all namespaces.
  2. Set the scan speed. Expedite scanning by running parallel scanners. Set the MAX_PARALLELISM env variable for the maximum number of simultaneous scanners.
  3. Set severity level threshold. Vulnerabilities with severity level higher than or equal to SEVERITY_THRESHOLD threshold will be reported. Supported levels are Unknown, Negligible, Low, Medium, High, Critical, Defcon1. Default is Medium.
  4. Set the delete job policy. Set the DELETE_JOB_POLICY env variable to define whether or not to delete completed scanner jobs. Supported values are:
    • All – All jobs will be deleted.
    • Successful – Only successful jobs will be deleted (default).
    • Never – Jobs will never be deleted.

You can read more and download this tool over here: https://github.com/Portshift/Kubei

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